Glyphosate was detected in 12 of 14 samples, at levels as high as 1.228 ng/mL, according to John Fagan, chief scientist for HRI Labs [http://hrilabs.org/], which conducted the tests.

Ronnie Cummins, OCA international director, said: "Ben & Jerry's announcement yesterday that it will source 6% organic dairy is positive news. But that leaves 94% of its supply coming from conventional dairies which use massive amounts of GMO animal feed. We will push for a transition to 100% organic, backed by a legally binding contract."

Commenting on the results, Séralini said: "Research indicates that levels of glyphosate in most samples likely pose a health risk. The regulatory levels set in the EU and US are based on outmoded toxicology models that fail to account for the properties of hormone disrupters like glyphosate-based herbicides, which can damage health at very low levels."

Prior to the conference, Rivasi said: "Based on the research of Séralini and others, Europe should immediately ban Roundup, and all uses of glyphosate in toxic formulations."

Thomas said: "Moving to a fully organic system is the only way to ensure a product is free from traces of endocrine-disrupting and carcinogenic glyphosate."